from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A thick-walled diploid or multinucleate spore formed by the union of similar gametes in certain fungi and algae.

from The Century Dictionary.

  • noun In botany, a spore formed in the process of reproduction in some algæ and fungi by the union or conjugation of two similar gametes or protoplasmic masses: called isospore by Rostafinski. Also zygosperm, zygote. See spore, conjugation, 4 (with cut).

from the GNU version of the Collaborative International Dictionary of English.

  • noun Same as zygosperm.
  • noun A spore formed by the union of several zoöspores; -- called also zygozoöspore.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun botany A zygosperm.
  • noun botany A spore formed by the union of several zoospores.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a plant spore formed by two similar sexual cells


Sorry, no etymologies found.


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